Gedalyahu Alon (1901-1950) one of the first graduates of The Hebrew University taught Talmud and Jewish History there. Alon clarified many problems in the development of halakhah and the evolution of the social history of the Jews. Alon's works combined an exhaustive acquaintance with source materials and an acute critical sense, placed the history of Palestinian Jewry in the first centuries of the Common Era upon a new basis.